How to open and PDF or word document in the [Flutter]

Question

Question is simple, I would like to open any pdf or doc file via default App with using Flutter.

Think a Raised button that related my pdf asset, when user press it

Answer 1

without downloading file,open from URL using the package : url_launcher

import 'package:url_launcher/url_launcher.dart';

_launchURL() async {
  const url = 'https://flutter.dev/exapmle.pdf';
  if (await canLaunch(url)) {
    await launch(url);
  } else {
    throw 'Could not launch $url';
  }
}